How JavaScript strings are defined

This article mainly explains "how to define JavaScript string". Interested friends may wish to take a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how to define JavaScript strings.

JavaScript string

JavaScript strings are used to store and process text.

JavaScript string

A string can store a series of characters, such as "JohnDoe".

The string can be any character inserted in quotation marks. You can use single or double quotation marks:

Example

Varcarname= "VolvoXC60"

Varcarname='VolvoXC60'

You can use the index position to access each character in the string:

Example

Varcharacter=carname [7]

The index of the string starts at 0, which means that the first character index value is [0], the second is [1], and so on.

You can use quotation marks in a string, and the quotation marks in the string should not be the same as those in the string:

Example

Varanswer= "It'salright"

Varanswer= "Heiscalled'Johnny'"

Varanswer='Heiscalled "Johnny"'

You can also add escape characters to the string to use quotation marks:

Example

Varx='It\ 'salright'

Vary= "Heiscalled\" Johnny\ ""

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